According to the Mile 22 actor, he thinks the beginning of the issue came from the fact that Wahlberg had not done much acting before that, and there was a feeling that the outlandish rapper might not be the best fit for the serious story about addiction.
Back in 1995, Leonardo DiCaprio and Mark Wahlberg starred together in the film The Basketball Diaries.
There have been stories ever since about the pair not getting along, but now Mark Wahlberg explains the situation.